Have you tried adjusting your mirrors the right way?
If you can see the sides of your vehicle from the driver seat with the side view mirrors you don't have them adjusted properly.
The side view mirror viewing field should begin where the rear view mirror's viewing field ends, and when adjusted properly will let you see everything in your rear view.
Not only that but you will be able to see the vehicle transition from mirror to mirror on either side.
Properly adjusted you won't even have to move your head to see both lanes next to you and the vehicles occupying them. You will also no longer have a blind spot.
If you can see the sides of your vehicle from the driver seat with the side view mirrors you don't have them adjusted properly.
The side view mirror viewing field should begin where the rear view mirror's viewing field ends, and when adjusted properly will let you see everything in your rear view.
Not only that but you will be able to see the vehicle transition from mirror to mirror on either side.
Properly adjusted you won't even have to move your head to see both lanes next to you and the vehicles occupying them. You will also no longer have a blind spot.